Seattle to Key West: what the flight costs
In the last 60 days we checked this route 3 times. The typical return was £442 per person and the lowest £405, taxes and fees included.
| Per person | |
|---|---|
| Lowest seen | £405 |
| Typical (median) | £442 |
| Price checks, 60 days | 3 |
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Trips we picked on this route
Just found · from SeattleWorth it, if
Key West
14 – 21 Nov 2026 · 7 nights
- One-stop American flights, $76 below the highest fare we saw
- Highs of 78–79°F and lows near 75°F in mid-November
- Blue Flamingo Resort Key West scores 8.4 from 1,582 reviews
£2,369 for two · 7 nights · flights, hotel, taxes, fees & the resort fee
Flights £810 + hotel £1,404 + resort fee £156, taxes in · a checked bag each adds about £121
American · with a stop · 8h 45m
The catch: It's one stop and 8h 45m out, leaving at 5:10 AM, still in hurricane season, and a checked bag is about $160 for two.
Worth it if you want a warm week of sunsets, reef and walkable streets; skip it if a 5:10 AM one-stop flight is a dealbreaker.
Every fare we found in the last 30 days
| Checked | Trip dates | Per person | Airline | Stops | Duration | Source |
|---|---|---|---|---|---|---|
| 15 Oct 2026 | 14 – 21 Nov 2026 | £442 | F9 + G4 | with a stop | 74h 52m | Kiwi.com |
| 15 Oct 2026 | 14 – 21 Nov 2026 | £405 | American | with a stop | 8h 45m | Google Flights |
| 15 Oct 2026 | 14 – 21 Nov 2026 | £446 | F9 + G4 + MX | with a stop | 37h 3m | Kiwi.com |
About Key West
Key West is the end of the road, a small island of pastel conch houses, sunset celebrations and reef snorkelling at the tip of the Florida Keys.
Key West from every city: when to go, where to stay, what to do
Questions about Seattle to Key West
What does a return from Seattle to Key West usually cost?
Over the last 60 days the typical price we found was £442 per person, taxes and fees included, across 3 checks; the lowest was £405.
When is the best time to fly from Seattle to Key West?
Key West is at its best in January, February, March, April, May, November and December. Avoid August, September, October: Peak hurricane season; many visitors wait until November
Do I need a passport to fly from Seattle to Key West?
No passport needed for travellers from the United States: a government photo ID is enough for Key West.
Prices converted from US dollars at the rate of 15 Oct 2026.